Question 1
Formulate the null and alternative hypotheses for a hypothesis test.
The owner of a football team claims that the mean attendance at games is greater than 75,100.
◦ H
0: μ < 75,100
H
a: μ = 75,100
◦ H
0: μ = 75,100
H
a: μ < 75,100
◦ H
0: μ = 75,100
H
a: μ > 75,100
◦ H
0: μ > 75,100
H
a: μ = 75,100
Question 2
Formulate the null and alternative hypotheses for a hypothesis test.
In 1990, the average duration of long-distance telephone calls originating in one town was 8.5 minutes. A long-distance telephone company wants to perform a hypothesis test to determine whether the average duration of
phone calls has changed from the 1990 mean of 8.5 minutes.
◦ H
0: μ = 8.5 minutes
H
a: μ < 8.5 minutes
◦ H
0: μ = 8.5 minutes
H
a: μ > 8.5 minutes
◦ H
0: μ ≠ 8.5 minutes
H
a: μ = 8.5 minutes
◦ H
0: μ = 8.5 minutes
H
a: μ ≠ 8.5 minutes
A Test for the Blind Spot
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